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Replacing the HEPA Filter and Prefilter

 

1.  To  access  the  filters,  turn  the  Air  Cleaner 

OFF

 

at the switch and open the top front door. 

2.  Carefully  remove  the  filters  to  avoid  spilling  of 

collected  contaminants.  Dispose  of  filters  in  a 
plastic  bag  and  discard  with  regular  household 
trash. 

3.  Remove  the  plastic  from  the  new  filters  before 

installing.  Discard  plastic  safely.  Take  care  not 
to  damage  the  filters.  Hold  by  the  filter  frame 
only. 

4.  Date  the  replacement  filter  in  the  space 

provided. 

5.  Place  the  filters  in  their  appropriate  track  with 

the arrows pointing toward the fan.  

6.  Use  genuine  replacement  filters  only.  Call  the 

original installer for parts. 

Note:

  When  the  filters  are  new,  you  may  notice  a 

new smell from the system. This is normal and will 
dissipate within a few hours. 
 

Prefilter  (#DM900-0855):

  This  must  be  replaced 

every 3-6 months. A clean Prefilter will increase the 
life of the HEPA Filter and improve airflow. 

HEPA  Filter  (#DMH4-0400):

  Replace  every  2-3 

years. The life of this filter depends on the amount 
of  contaminants  in  the  air  and  the  frequency  in 
which the Prefilter has been changed. Renovations 
in  the  home  that  create  wood,  drywall  dust  or 
similar contaminants will shorten the life expectancy 
of the HEPA filter. 

Note:

  Handle  the  HEPA  filter  by  the  frame  only. 

The  paper  is  fragile  and  a  puncture  or  tear  will 
reduce efficiency. 

 
Replacing  the  UVC  Lamps,  PCO  Filter  and Final 
Filter

 

1.  To  change  the  PCO  filter,  Final  filter  and  UVC 

lamps, turn the Air Cleaner 

OFF

 and 

UNPLUG

 

it.  Remove  the  screws  from  the  lamp  access 
panel and remove the panel. 

DO  NOT 

misplace 

the parts. 

2.  Carefully  remove  the  filters  to  avoid  dusting  of 

filter. Dispose of the filters in a plastic bag and 
discard with regular household trash. 

3.  To remove the lamp from the lamp socket, pull 

the  lamp,  by  the  base,  away  from  the  lamp 

WARNING 

Make  sure  the  Air  Cleaner  is 

OFF

  and 

UNPLUGGED

  

before opening the lamp access panel. 

WARNING  

Eye and skin damage may result from direct exposure 
to the light produced by the lamp used in this product. 

NEVER

  open  the  lamp  access  panel  without  having 

the Air Cleaner unplugged. 

CAUTION  

Do  not  touch  the  lamp  glass  with  bare  hands.  Always 
use the gloves provided when installing the lamps. The 
oil  from  your  hands  may  reduce  the  effectiveness  of 
the  lamp.  The  lamp  may  be  cleaned  with  a  soft  cloth 
dampened with water only. 

CAUTION  

The  lamps  operate  at  a  very  high  temperature.  Allow 
the lamps to cool 10 minutes before touching. 

CAUTION  

When replacing the filters wear disposable gloves and 
a dust mask. 

 

Fig. 6 – Lamp Access Panel 

CAUTION  

When replacing the filters wear disposable gloves and 
a dust mask. 

Summary of Contents for DM900UV-VO-WHT-VS

Page 1: ...icidal Lamps CinQuartz Photo Catalytic Oxidation Filter removes unpleasant odors and Volatile Organic Compounds Carbon Potassium Permanganate Final Filter removes non organic gases Kills or inhibits b...

Page 2: ...ime and redecorating costs Provides a healthier more comfortable environment year round HOW IT WORKS Millions of airborne pollutants are carried through the return air ducts of the heating cooling sys...

Page 3: ...the holes on the top or bottom of the unit if you are duct mounting the Air Cleaner Bend all the flaps outward slightly less than 90 degrees except for the upper bottom flap which is only bent up 45 d...

Page 4: ...direct it should be added to the system before the intake inlet to the Air Cleaner 5 The 8 inch intake collar top must draw air from the return duct at a location that will be ahead of the clean exha...

Page 5: ...cord to be placed where it may be walked on or allow anything to roll over it MAINTENANCE For efficient operation the filters must be changed on a regular basis If you notice a reduction in air flow f...

Page 6: ...ncy of the HEPA filter Note Handle the HEPA filter by the frame only The paper is fragile and a puncture or tear will reduce efficiency Replacing the UVC Lamps PCO Filter and Final Filter 1 To change...

Page 7: ...ced UVC Lamp PCO Maintenance Kit DM900 1002 Contains 2 UVC lamps 2 lamp support clips 1 PCO filter and gloves Complete 2 Year Maintenance Kit DM900 1003 Contains 1 HEPA filter 4 carbon prefilters 2 UV...

Page 8: ...All implied warranties including implied warranties of merchantability are hereby limited in duration to the period for which the limited warranty is given The expressed warranties made in this warran...

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